<!DOCTYPE html>
<html>
<body style="margin: 0px;">
  <svg x="0" y="0" height="300" width="300">
    <rect x="0" y="0" width="100" height="100" style="stroke:none; fill: blue"/>
    <rect x="100" y="100" width="100" height="100" style="stroke:none; fill: blue"/>
    <rect x="200" y="200" width="100" height="100" style="stroke:none; fill: blue"/>
  </svg>
</body>
</html>